The difference between a fictional novel and a time-travel novel was the fictional time and space setting. A fictional novel usually set a timeline that transcended reality or unfolded the story in a completely different historical context. The protagonist would not directly face the historical characters and events, but would observe the world from a third-party perspective. This type of novel often focused on the ups and downs of the plot and the psychological description of the characters. Sometimes, it would also explore some abstract issues. Time travel novels usually set a protagonist to travel to another historical or future world. The main character would face historical figures and events directly and sometimes make decisions that would change history. Time travel novels often paid more attention to the fate and growth of the characters, and they would also explore some real-life problems. Of course, there were some differences between fictional novels and time-travel novels. For example, some fictional novels would also set a social background similar to modern times to let the readers feel the protagonist's experience in modern society. Some fictional novels might combine future technology with elements of modern society to create a unique worldview.